Slipstream in the SATA drivers for your motherboard (and the chipset INFs, and a video driver or two, etc.) and you can solve the entire issue quite easily. nLite makes it all trivial.
An alternative is to flip the SATA devices on your board to legacy or non-matrix mode, in which case they should work with XP's generic IDE driver. Some suggest you give up performance and/or flexibility in doing so, though.